src/unmime.c

   1 #include <stdio.h>
   2
   3 int fromhex(int a)
   4 {
   5         return(a<='9'?a-'0':a-'A'+10);
   6 }
   7
   8 int main(int argc,char **argv)
   9 {
  10 char c,seek;
  11 int i;
  12         if (argc>1&&*(argv[1])) seek=*(argv[1]);
  13         for (;;) {
  14                 i=getchar();
  15                 if (i==-1) break;
  16                 if (i!=seek) { putchar(i); continue; }
  17                 i=getchar();
  18                 if (i=='\n') continue;
  19                 if (i==-1) break;
  20                 c=i;
  21                 i=getchar();
  22                 if (i==-1) break;
  23                 putchar(fromhex(c)*0x10+fromhex(i));
  24                 }
  25         return(0);
  26 }